Min Byul is a princess that is in her last year of high school. Suddenly she got a letter from the principle telling that they want to enroll her in their school which 'Royal Charm School' , which is the most elite and prestigious high school for princesses and princes. Min Byul accepts the school offer and transfer to her new school. After arriving to her new school she meets the school hottest boy and her most dearest friend , but she has a lot of haters. How will Min Byul survive the last high school year? Not all princesses has perfect endings.